#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2018-12-05 17:46
# @Author  : 少爷

a = [99, 66, 25, 10, 3]

if __name__ == '__main__':
    N = len(a)
    print a
    for i in range(len(a) / 2):
        a[i], a[N - i - 1] = a[N - i - 1], a[i]
    print a
